212 research outputs found
LADM: the next phase
Full text linkEight years after its launch, many countries are using the Land Administration Domain Model to develop land administration systems. Christiaan Lemmen, Peter van Oosterom and Eftychia Kalogianni report on the implementations so far – as well as what to expect from the next version.Architectural Engineering +Technolog
Unconventional approaches to land administration:a point of view of land registrars and land surveyors
Full text linkLand administration ('the process of determining, recording, and disseminating information about ownership, value and use of land when implementing land management policies' according to UN Land Administration Guidelines 1996) facilitates -inter alia- land tenure security, the land market, land use planning and control, land taxation and management of natural resources. In textbooks usually two processes are determined for the initial establishment and maintenance of the system, namely the adjudication process and the cadastral boundary survey. This paper aims at identifying unconventional approaches from the point of view of land registrars and land surveyors, which might contribute to the development of appropriate land administration systems in countries that desire to use a land register and cadastre as a tool for the implementation of its land policy
Land Information Modeling: Inaugural address to mark the occasion of the appointment of prof. Dr. Christiaan lemmen as professor of land information modeling at the faculty of Geo-information Science and Earth Observation, ITC, at the University of Twente on thursday 25 october 2018.
No full textFit-For-Purpose Land Administration:Guiding Principles for Country Implementation
Full text linkThis publication is primarily designed to allow a range of stakeholders in developing countries to understand the overall Fit-For-Purpose approach and to recognize the benefits of adopting this approach. The Fit-for-Purpose solutions provide opportunities for land administration systems to deliver benefits, including secure tenure rights, to a wide range of stakeholders within a relatively short time and for relatively affordable costs in a flexible manner. It provides structured guidance on building the spatial, legal and institutional frameworks in support of designing country-specific strategies for implementing FFP land administration. It contains the analysis and operational advisory guidelines to implement the approach. Authors of the Guide are Stig Enemark, Robin McLaren and Christiaan Lemmen and it is published by UN-Habitat/GLTN and Dutch Kadaster
The Land Administration Domain Model 'Survey Package' and Model Driven Architecture
No full textThe master of science thesis project called "The Land Administration Domain Model 'Survey Package' and Model Driven Architecture" will be described and concluded in this report. The main subjects for the research are the Land Administration Domain Model (LADM), specifically the Survey Package, dealing with survey measurements. Secondly, the Model Driven Architecture (MDA), a software design methodology to generate platform specific information systems based on platform independent models, specified in the Unified Modelling Language (UML) and the Object Constraint Language (OCL). A custom developed MDA Prototype has been developed, aiming at the implementation of the Adapted LADM 'Survey Package' in a PostgreSQL/PostGIS object-relational database. Thirdly, an analysis of the quality of the Dutch cadastral map is performed, based on data loaded into this the Adapted LADM 'Survey Package' PostGIS database.GIMAGIS technologyOTB Research Institute for the Built Environmen
A domain model for land administration
Full text link75% or the “people to land relationships” worldwide are not documented. This concerns about 4.5 billion cases. With a growing population this situation results in land disputes, land grabbing and neglecting of rights of local people. Land Administration provides documentation on people to land relationships. Land Administration is an instrument for implementation of Land Policies - part of governmental policy on environmental sustainability, economic development, disaster management, social justice and equity and political stability. Land Administration is in support to legal security (protection of land rights), access to credit (collateral for mortgage or micro credit), spatial planning, land tax and resource management (mining, forestry, and nature). Many countries have an incomplete, not up to date and therefore non-reliable land administration. Standards are needed in Land Administration, both for initial data acquisition and for data maintenance. Experience learns that it is not an easy task to design and set up a land administration. In many countries modelling expertise to set up Land Administration Systems is lacking. It should be noted that those systems contain high volumes of data. In this thesis a common standard for the land administration domain is designed and proposed for implementation. Such a standard is in support to development of software applications and this will accelerate the development and implementation of proper land administration in support to sustainable development. The International Standard is expected to be published as ISO standard in August 2012, a breakthrough in the development of this type of systems. There is already recognition and support by FAO, UN HABITAT and several countries.GIS TechnologyOTB Research Institute for the Built Environmen
First experiences with a high-resolution imagery-based adjudication approach in Ethiopia
No full textGreat progress has been made with rural land certification in Ethiopia. This process, however, has been mainly confined to the first phase certificates – those without a georeference. In 2008, a team conducted a simple field test using high resolution imagery. On-site tests were performed to determine if Quickbird satellite imagery could be used to establish parcel index maps in selected villages. The data collection in the field was performed with the help of land rights holders and local officials. The image quality of the plots at a scale of 1:2000 was sufficiently high to allow the parties to easily understand the images and contribute input, making the process very participatory. Many land rights holders were not able to present their certificates, suggesting updating issues. Even though the test was not well prepared, it yielded useful experiences and data. This limited data set was processed initially with ArcGIS and later with the first prototype of the Social Tenure Domain Model (STDM), which is open-source software. Processing the limited graphical display of the boundaries was relatively easy, but trying to link the data to Global Positioning System (GPS) coordinates (collected, at the same time, with hand-held GPS) was not immediately possible due to offsets caused by a number of reasons. Nevertheless, the approach seems very useful for lower land value areas where coverage is more important than (absolute) accuracy.Geo-information and Land DevelopmentOTB Research Institut
Interoperability issues related to LADM profiled implementations: A first exploration
Full text linkIn case of need for exchanging data or information between registries and cadasters and other organizations interoperability is an issue. This requires a common understanding expressed in semantics, vocabularies and ontologies. The Land Administration Domain Model (LADM) within the Resource Description Framework (RDF) using Web Ontology Language (OWL) provides a foundation here. As the LADM standard suggests a first step in its implementation is the development of a country profile - where national legislation and regulations are expressed. In practice we see a profile level, semantic level, data level, format level and a communication level. Interoperability can apply within the same level and between levels. There are two mainstream international standards defining interoperability: (i) CEN/ISO 11354 (data, services, process, business) and (ii) the European Interoperability Framework (technical, semantic, organizational, legal). This paper discusses those standards in relation to a smooth implementation of a LADM local profile. Land administration methodologies, approaches and tools develop rapidly, supported by private companies, modern technologies, and new information and communication possibilities. Further steps are needed to operationalize those methods and tools at scale (Enemark et al., 2016). Innovative thinking coupled with quickly maturing, scalable approaches is needed in many countries in order to create full coverage in land administration. (Lemmen, et al., 2019) There is a challenge for countries on how to implement the LADM. There is a need for good practices, processes, implementation guides, and shared expertise from earlier implementations (OGC, 2019c). This paper explores interoperability issues in the context of LADM country profile implementations. This is a very first step to the development of a PhD proposal for the development, implementation and testing of use cases that prove and adjust interoperability in land administration. This ranges from the link between databases under responsibility of cadastre and land registry organizations to integrated (spatial and legal/administrative) data acquisition in the field connected to databases under cadastre and land registry. Further there is attention to output services and integration with national key data sets
Towards a new working item proposal for Edition II of LADM
Full text linkThis paper presents the first and incomplete draft text for the revision of IS 19152:2012 ‘Geographic information — Land Administration Domai n Model (LADM)’ within ISO TC211 in the form of a New Working Item Proposal (N WIP). This ‘two-page NWIP’ text aims to describe the scope of proposed project to r evise, and also provides the purpose and justification behind this revision of LADM. The Int ernational Federation of Surveyors (FIG) also submitted to ISO the NWIP for the current vers ion of LADM (IS 19152:2012). As for the revision the ambition is now to go beyond just a co nceptual model by providing steps towards implementations (e.g. more specific profiles, techn ical model in various encodings, etc.), it is the intention that the Open Geospatial Consortium, Inc. (OGC) is heavily involved in the revision and that the result is a joint ISO/OGC sta ndard. For this purpose the recent draft OGC White Paper is added as Appendix 1 to this pape r to provide more detail background information. It is further noted that the complete NWIP for Edit ion II of LADM also ‘Preparatory work’ should be attached; e.g. a draft of the new version of the standard. In the case of the revised LADM standard of course this is based on the IS 191 52:2012, but will contain also contain collected materials from the LADM2017 and LADM2018 workshop
Remarks and observations related to the further development of the core cadastral domain model
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